Journalists are taught to approach the word "unique" with extreme caution, but their use of the editing scalpel may, perhaps, be avoided if the name Humphrey Lyttelton is mentioned.
When it comes to "one-offs" Humph was, most certainly, our man.
There are two opportunities to remember him this week - tomorrow night in Birmingham and on Friday in Lichfield.
Lyttelton's association with the Birmingham International Jazz Festival was long and loyal - he was its Festival Patron up until his death in April, and had played it many times.
At Wine REPublic tomorrow at 7pm there is the Humphrey Lyttelton Memorial Jam Session, a fittingly informal and spontaneous way for the musicians to pay their respects and celebrate the life and inspiration of a great jazz-man.
Humph had been booked to play Lichfield Cathedral as part of the Lichfield Festival on Friday. That has now turned into a memorial, too, with the Humphrey Lyttelton Band joined by special guests.
They are clarinetist and one of its original members, Wally Fawkes, the BBC Radio 4 announcer Brian Perkins, who will act as compere, and the young singer who recorded with Lyttelton shortly before his death, Louise Parker.
Humph Remembered is at 7.30pm on Friday and tickets are available from lichfieldfestival. org or on 01543 412121.
* The Birmingham International Jazz Festival is well into its stride now, and with so many gigs in the diary over the next seven days there is only space here to scratch the surface.
Tonight Birmingham's Rehab Records presents saxophonist Chris Bowden's wicked trio, The Tomorrow Band, also at Wine REPublic. It starts at 8pm. This is the group (Ben Markland on bass, Neil Bullock on drums) that was hugely impressive in support of EST on their last concert in Symphony Hall.
They have a new album, 2 To Get Set, about to be released on Rehab, so you might be able to pick up a still-warm copy this evening.
Tomorrow, in addition to the jam session, keep an eye out for Alan Barnes, master of lots of things with reeds. He is at Hotel Du Vin in the afternoon and The Living Room in the evening.
On Wednesday it's big band time at the Menzies Strathallan Hotel where the visiting Synthesis Big Band from the US get all bold and brassy. Fiery Dutch violinist Tim Kliphuis is also in town.
Both Synthesis and Kliphuis are around again on Thursday, plus there is Ragtime at Wine REPublic with the Budapest Ragtime Band, and reggae-jazz time at Bearwood Corks Club, with Sonny Bradshaw and his wife Myrna Hague joining Andy Hamilton and his Blue Notes.
Friday's regular Symphony Hall/Birmingham Jazz rush-hour spot is filled this week by the excellent Walsall Jazz Orchestra, still a mighty force after many years tightening their sound.
Over at the Robin2 in Bilston, Bill Wyman leads his Rhythm Kings.
A special mention for the film, Let's Get Lost, a hugely insightful portrait of the late Chet Baker. No jazz film has won such plaudits since the classic Jazz on A Summer's Day. It's showing at the Electric Cinema on Friday, Saturday and Sunday at 6.30pm.
Saturday finds the Bourbon Street Stompers from Germany making the Black Country Living Museum even livelier, and on Sunday there is a grand finale at The Barn in Witton with a Battle of the Big Bands, the bands in question being the Garry Allcock All Stars and MYJO.
There are, of course, countless other free gigs happening in a pub, restaurant, shopping centre, art gallery, bandstand, etc, near you.
For full details, go to birminghamjazzfestival.com or grab a programme from the many venues about the city.
* Meanwhile, over in Lichfield on Thursday the Cathedral becomes a playground for the group Acoustic Triangle, augmented for their current tour by a six-strong string section (try saying that quickly).
They will create a three-dimensional sound space by playing at the centre of their audience, as well as behind and above them. Music that will fly, composed by saxophonist Tim Garland and pianist Gwilym Simcock, all with the strings around it and solid ground of band leader Malcolm Creese under it, and in a space that will help it soar even higher.
On Saturday evening, a triangle of a different kind - three voices and one piano.
The Passion brings together jazz singers Liane Carroll, Sara Colman and Jacqui Dankworth. With piano from Colman or Carroll, they sing a wide range of songs, from their own to jazz standards and gospel-tinged pop like Laura Nyro's And When I Die, or Loudon Wainwright III's quirky Swimming Song.
They have a new album out later this month, called One Good Reason, one more good reason to get to the Lichfield Garrick Theatre on Saturday night at 8pm. Again, tickets are from lichfieldfestival.org or 01543 412121.
* If you have any news or views you'd like to share, email me at firstname.lastname@example.org. The blog is at thejazzbreakfast.blogspot.com.